He reported, "I sought permission from the Prophet ﷺ to perform Umrah, and he granted it to me, saying, 'Do not forget us, my brother, in your supplications.'" He said a phrase that I would not exchange for the entire world.Shuba said, "I later met Asim in Medina, and he narrated it to me, saying, 'Include us, my brother, in your supplications.'"
حدثنا سليمان بن حرب حدثنا شعبة عن عاصم بن عبيد الله عن سالم بن عبد الله عن أبيه
عنه قال استأذنت النبي ﷺ في العمرة فأذن لي وقال لا تنسنا يا أخي من دعائك فقال كلمة ما يسرني أن لي بها الدنيا قال شعبة ثم لقيت عاصما بعد بالمدينة فحدثنيه وقال أشركنا يا أخي في دعائك
[Its chain is daif] Tirmidhi reported it in his chapters on Dua, chapter 109, hadith 3562, from the hadith of Asim bin Ubaydullah, and he said, hasan sahih. Ibn Majah also narrated it, hadith 2894.* Asim bin Ubaydullah is daif, the majority of scholars judged him daif.