Zayd bin Aslam reported,

His father reported that the Messenger of Allah ﷺ was traveling on one of his journeys with Umar bin Khattab beside him at night. Umar bin Khattab asked him about something, but the Messenger of Allah ﷺ did not answer him. He asked again, and still received no answer. He asked a third time, and again there was no reply.Umar bin Khattab said to himself, "May your mother lose you, Umar. You pressed the Messenger of Allah ﷺ three times, and each time he did not answer you."Umar continued, "So I spurred my camel forward and moved ahead of the Muslims, fearing that something in the Quran might be revealed concerning me. It was not long before I heard someone calling out to me. I said, 'I feared that something had indeed been revealed about me in the Quran.' I came to the Messenger of Allah ﷺ and greeted him."He said, "A surah has been revealed to me tonight that is more beloved to me than anything upon which the sun has risen." Then he recited, "Indeed, We have granted you a clear victory" [Fath 48:1].

عن زيد بن أسلم

عن أبيه، أن رسول الله ﷺ كان يسير في بعض أسفاره وعمر بن الخطاب يسير معه ليلا، فسأله عمر بن الخطاب عن شيء فلم يجبه رسول الله ﷺ، ثم سأله فلم يجبه، ثم سأله فلم يجبه، فقال عمر بن الخطاب: ثكلتك أمك يا عمر، نزرت رسول الله ﷺ ثلاث مرات كل ذلك لا يجيبك، قال عمر: فحركت بعيري، ثم تقدمت أمام المسلمين، وخشيت أن ينزل في قرآن، فما نشبت أن سمعت صارخا يصرخ بي، قال: فقلت: لقد خشيت أن يكون قد نزل في قرآن، وجئت رسول الله ﷺ فسلمت عليه، فقال: لقد أنزلت علي الليلة سورة لهي أحب إلي مما طلعت عليه الشمس، ثم قرأ: {إنا فتحنا لك فتحا مبينا}