Saeed bin Jubayr reported,

Saeed bin Jubayr said, "I said to Ibn Abbas, 'Nawf Bakali claims that the Musa who accompanied Khidr was not the Musa of the Children of Israil.'"Ibn Abbas replied, "The enemy of Allah has lied. Ubayy bin Kaab told me that he heard the Messenger of Allah ﷺ say the following."Musa once stood to address the Children of Israil, and he was asked which of the people is the most knowledgeable. He answered, "I am."Allah reproached him for not referring the knowledge back to Him, and He revealed to him that He had a servant at the junction of the two seas who was more knowledgeable than he was.Musa said, "My Lord, how can I reach him?"Allah said, "Take a fish with you and put it in a basket. Wherever you lose the fish, there he will be."So Musa took a fish and put it in a basket, then set out, accompanied by his young servant Yusha bin Nun. When the two of them reached the rock, they laid down their heads and slept, and the fish thrashed about in the basket, slipped out of it, and fell into the sea, so "it took its way into the sea, slipping away" [Kahf 18:61]. Allah held back the flow of the water from the fish, so that it stood over it like an archway.When Musa awoke, his companion forgot to tell him about the fish, so they traveled on for the rest of that day and through the night. The next morning Musa said to his servant, "Bring us our morning meal, for we have suffered great fatigue on this journey of ours" [Kahf 18:62]. Musa felt no fatigue until they had passed the place Allah had commanded him about.His servant said to him, "Do you recall when we took shelter at the rock? I forgot the fish, and none but Satan made me forget to mention it. It took its way into the sea, and that was strange" [Kahf 18:63].For the fish there was a passage, and for Musa and his servant there was wonder.Musa said, "That is what we were seeking." So they retraced their steps, following their tracks [Kahf 18:64]. They went back tracing their footprints until they came to the rock, and there was a man wrapped in a garment. Musa greeted him with peace.Khidr said, "Is there such a thing as peace in your land?"He said, "I am Musa."Khidr asked, "Musa of the Children of Israil?"He said, "Yes. I have come to you so that you may teach me some of the right guidance you have been taught" [Kahf 18:66].Khidr said, "You will surely not be able to bear with me patiently" [Kahf 18:67]. "Musa, I have a knowledge from the knowledge of Allah which He has taught me and which you do not possess, and you have a knowledge from the knowledge of Allah which He has taught you and which I do not possess."Musa said, "You will find me patient, if Allah wills, and I will not disobey you in anything" [Kahf 18:69].Khidr said to him, "Then if you follow me, do not ask me about anything until I myself mention it to you" [Kahf 18:70].So they set off walking along the seashore, and a ship passed by. They spoke to the crew, asking to be taken aboard. The crew recognized Khidr and carried them without any fare. Once they had boarded the ship, before Musa knew it Khidr had pried loose one of the ship's planks with an adze.Musa said to him, "These people carried us without any fare, and you have deliberately damaged their ship and made a hole in it so as to drown its people. You have done a dreadful thing" [Kahf 18:71].Khidr said, "Did I not tell you that you would not be able to bear with me patiently?" [Kahf 18:72].Musa said, "Do not hold me to account for what I forgot, and do not be hard on me" [Kahf 18:73].The Messenger of Allah ﷺ said that this first instance from Musa was out of forgetfulness.Then a sparrow came and settled on the edge of the ship, dipping its beak once into the sea.Khidr said to him, "My knowledge and your knowledge, set against the knowledge of Allah, are only like what this sparrow has taken from this sea."Then they left the ship, and as they were walking along the shore Khidr caught sight of a boy playing with other boys. Khidr took hold of the boy's head with his hand, tore it off, and killed him.Musa said to him, "Have you killed an innocent soul who had killed no one? You have certainly done a terrible thing" [Kahf 18:74].Khidr said, "Did I not tell you that you would not be able to bear with me patiently?" [Kahf 18:75].This one was more serious than the first.Musa said, "If I ask you about anything after this, then do not keep me in your company. You would then be excused concerning me" [Kahf 18:76]. "So they went on until they came to the people of a town. They asked its people for food, but they refused to show them any hospitality. There they found a wall on the point of collapsing, and he set it upright" [Kahf 18:77].Musa said, "These are people we came to who would not feed us and would not host us. If you had wished, you could have taken a wage for this" [Kahf 18:77]."He said, This is the parting between me and you" [Kahf 18:78], up to His words, "That is the explanation of what you could not bear patiently" [Kahf 18:82].The Messenger of Allah ﷺ said, "We would have wished that Musa had been patient, so that Allah might have told us more of their story."Saeed bin Jubayr said that Ibn Abbas used to recite, "And ahead of them was a king who seized every sound ship by force" [Kahf 18:79], and he used to recite, "As for the boy, he was a disbeliever and his parents were believers" [Kahf 18:80].

عن سعيد بن جبير قال

قلت لابن عباس: إن نوفا البكالي يزعم أن موسى صاحب الخضر ليس هو موسى صاحب بني إسرائيل، فقال ابن عباس: كذب عدو الله، حدثني أبي بن كعب أنه سمع رسول الله ﷺ يقول: إن موسى قام خطيبا في بني إسرائيل، فسئل أي الناس أعلم؟ فقال: أنا، فعتب الله عليه، إذ لم يرد العلم إليه، فأوحي الله إليه: إن لي عبدا بمجمع البحرين هو أعلم منك، قال: يا رب كيف لي به؟ قال: تأخذ معك حوتا، فتجعله في مكتل، فحيثما فقدت الحوت فهو ثم، فأخذ حوتا، فجعله في مكتل، ثم انطلق وانطلق معه بفتاه يوشع بن نون، حتى إذا أتيا الصخرة وضعا رؤوسهما، فناما واضطرب الحوت في المكتل، فخرج منه، فسقط في البحر: {فاتخذ سبيله في البحر سربا} وأمسك الله عن الحوت جرية الماء، فصار عليه مثل الطاق، فلما استيقظ نسي صاحبه أن يخبره بالحوت، فانطلقا بقية يومهما وليلتهما، حتى إذا كان من الغد قال موسى لفتاه: {آتنا غداءنا لقد لقينا من سفرنا هذا نصبا} قال: ولم يجد موسى النصب حتى جاوزا المكان الذي أمر الله به، فقال له فتاه: {أرأيت إذ أوينا إلى الصخرة فإني نسيت الحوت وما أنسانيه إلا الشيطان أن أذكره واتخذ سبيله في البحر عجبا} قال: فكان للحوت سربا ولموسى ولفتاه عجبا، فقال موسى: {ذلك ما كنا نبغ فارتدا على آثارهما قصصا} قال: رجعا يقصان آثارهما، حتى انتهيا إلى الصخرة، فإذا رجل مسجي ثوبا، فسلم عليه موسي، فقال الخضر: وأنى بأرضك السلام؟ قال: أنا موسي، قال: موسى بني إسرائيل؟ قال: نعم أتيتك لتعلمني {مما علمت رشدا} قال: {إنك لن تستطيع معي صبرا} يا موسى! إني على علم من علم الله علمنيه لا تعلمه أنت، وأنت على علم من علم الله علمك الله لا أعلمه، فقال موسى: {ستجدني إن شاء الله صابرا ولا أعصي لك أمرا} فقال له الخضر: {فإن اتبعتني فلا تسألني عن شيء حتى أحدث لك منه ذكرا} فانطلقا يمشيان على ساحل البحر، فمرت سفينة فكلموهم أن يحملوهم، فعرفوا الخضر فحملوه بغير نول، فلما ركبا في السفينة لم يفجأ إلا والخضر قد قلع لوحا من ألواح السفينة بالقدوم، فقال له موسى: قوم حملونا بغير نول عمدت إلى سفينتهم فخرقتها {لتغرق أهلها لقد جئت شيئا إمرا} قال: {ألم أقل إنك لن تستطيع معي صبرا} قال: {لا تؤاخذني بما نسيت ولا ترهقني من أمري عسرا} قال: وقال رسول الله ﷺ- وكانت الأولى من موسى نسيانا- قال: وجاء عصفور فوقع على حرف السفينة، فنقر في البحر نقرة، فقال له الخضر: ما علمي وعلمك من علم الله إلا مثل ما نقص هذا العصفور من هذا البحر، ثم خرجا من السفينة فبينا هما يمشيان على الساحل إذ بصر الخضر غلاما يلعب مع الغلمان، فأخذ الخضر رأسه بيده، فاقتلعه بيده فقتله، فقال له موسى: {أقتلت نفسا زكية بغير نفس لقد جئت شيئا نكرا} قال: {ألم أقل لك إنك لن تستطيع معي صبرا}، قال: وهذه أشد من الأولى، قال: {إن سألتك عن شيء بعدها فلا تصاحبني قد بلغت من لدني عذرا} {فانطلقا حتى إذا أتيا أهل قرية استطعما أهلها فأبوا أن يضيفوهما فوجدا فيها جدارا يريد أن ينقض فأقامه} فقال موسى: قوم أتيناهم فلم يطعمونا ولم يضيفونا، {لو شئت لاتخذت عليه أجرا} {قال هذا فراق بيني وبينك} إلى قوله: {ذلك تأويل ما لم تسطع عليه صبرا} فقال رسول الله ﷺ: وددنا أن موسى كان صبر حتى يقص الله علينا من خبرهما. قال سعيد بن جبير: فكان ابن عباس يقرأ: وكان أمامهم ملك يأخذ كل سفينة صالحة غصبا، وكان يقرأ وأما الغلام فكان كافرا وكان أبواه مؤمنين.