Abu Musa Ashari reported,

News reached us of the Messenger of Allah's ﷺ emigration while we were in Yemen, so we set out as emigrants to join him. It was myself and two of my brothers, I being the younger of the two. One was Abu Burda and the other was Abu Ruhm. Along with us were either some fifty-odd, or fifty-three, or fifty-two men from my people.We boarded a ship, and our ship cast us upon Najashi in Abyssinia. There we found Jafar bin Abu Talib and his companions with him. Jafar said, "The Messenger of Allah ﷺ sent us here and ordered us to remain, so stay with us." So we stayed with him until we all came together later.We met up with the Messenger of Allah ﷺ just as he had conquered Khaybar, and he allotted us a share, or he said, he gave us a portion of it. He did not give a share of it to anyone who had been absent from the conquest of Khaybar except those who had witnessed it with him, save for the people of our ship along with Jafar and his companions. He gave them a share along with the others.Some people would say to us, meaning to the people of the ship, "We preceded you in emigration."Asma bint Umays, who was among those who came with us and had emigrated to Najashi among those who emigrated to him, entered upon Hafsa, the wife of the Prophet ﷺ, to visit her. Then Umar came in upon Hafsa while Asma was with her. When Umar saw Asma, he asked, "Who is this?"Hafsa replied, "Asma bint Umays."Umar said, "Is this the Abyssinian one? The seafaring one?"Asma said, "Yes."Umar said, "We preceded you in emigration, so we have more right to the Messenger of Allah ﷺ than you do."She became angry and said, "You lie, Umar! No, by Allah! You were with the Messenger of Allah ﷺ, who fed your hungry and instructed your ignorant, while we were in the land, or in the country, of those who were distant and hostile, in Abyssinia. That was for the sake of Allah and His Messenger. And by Allah, I shall not eat food nor drink any drink until I mention what you said to the Messenger of Allah ﷺ. We were being harmed and lived in fear, and I will mention that to the Messenger of Allah ﷺ and ask him. By Allah, I will not lie, I will not deviate, and I will not add anything to that."When the Prophet ﷺ came, she said, "Prophet of Allah, Umar said such and such."The Messenger of Allah ﷺ said, "He has no greater right to me than you do. He and his companions have one emigration, but you, the people of the ship, have two emigrations."She said, "I saw Abu Musa and the companions of the ship coming to me in groups, asking me about this hadith. There was nothing in the world that made them happier or seemed greater to them than what the Messenger of Allah ﷺ had said about them."Abu Burda said, Asma said, "I saw Abu Musa, and he would have me repeat this hadith to him over and over."

عن أبي موسى قال

بلغنا مخرج رسول الله ﷺ ونحن باليمن، فخرجنا مهاجرين إليه، أنا وأخوان لي، أنا أصغرهما، أحدهما أبو بردة، والآخر أبو رهم- إما قال بضعا، وإما قال: ثلاثة وخمسين أو اثنين وخمسين رجلا من قومي- قال: فركبنا سفينة، فألقتنا سفينتنا إلى النجاشي بالحبشة، فوافقنا جعفر بن أبي طالب وأصحابه عنده، فقال جعفر: إن رسول الله ﷺ بعثنا ههنا، وأمرنا بالإقامة، فأقيموا معنا فأقمنا معه حتى قدمنا جميعا، قال: فوافقنا رسول الله ﷺ حين افتتح خيبر، فأسهم لنا، أو قال أعطانا منها، وماقسم لأحد غاب عن فتح خيبر منها شيئا، إلا لمن شهد معه، إلا لأصحاب سفينتنا مع جعفر وأصحابه، قسم لهم معهم، قال: فكان ناس من الناس يقولون لنا- يعني لأهل السفينة: نحن سبقناكم بالهجرة. قال: فدخلت أسماء بنت عميس وهي ممن قدم معنا، على حفصة زوج النبي ﷺ زائرة وقد كانت هاجرت إلى النجاشي فيمن هاجر إليه، فدخل عمر على حفصة وأسماء عندها، فقال عمر حين رأى أسماء: من هذه؟ قالت: أسماء بنت عميس، قال عمر: الحبشية هذه؟ البحرية هذه؟ فقالت أسماء: نعم، فقال عمر: سبقناكم بالهجرة. فنحن أحق برسول الله ﷺ منكم. فغضبت وقالت كلمة: كذبت يا عمر! كلا والله! كنتم مع رسول الله ﷺ يطعم جائعكم، وكنا في دار، أو في أرض البعداء، البغضاء في الحبشة، وذلك في الله وفي رسوله وأيم الله! والله لا أطعم طعاما ولا أشرب شرابا حتى أذكر ما قلت لرسول الله ﷺ، ونحن كنا نؤذى ونخاف، وسأذكر ذلك لرسول الله ﷺ وأسأله، ووالله لا أكذب ولا أزيغ ولا أزيد على ذلك، قال: فلما جاء النبي ﷺ قالت: يا نبي الله! إن عمر قال كذا وكذا، فقال رسول الله ﷺ: ليس بأحق بي منكم وله ولأصحابه هجرة واحدة، ولكن أنتم، أهل السفينة، هجرتان. قالت: فلقد رأيت أبا موسى وأصحاب السفينة يأتوني أرسالا، يسألوني عن هذا الحديث ما من الدنيا شيء هم به أفرح ولا أعظم في أنفسهم مما قال لهم رسول الله ﷺ. قال أبو بردة: فقالت أسماء: فلقد رأيت أبا موسى، وإنه ليستعيد هذا الحديث مني.