Hadith 4995
Narrated Zayd ibn Arqam: The Prophet ﷺ said: When a man makes a promise to his brother with the intention of fulfilling it and does not do so, and does not come at the appointed time, he is guilty of no sin.
Hadith 4996
Narrated Abdullah ibn AbulHamsa': I bought something from the Prophet ﷺ before he received his Prophetic commission, and as there was something still due to him I promised him that I would bring it to him at his place, but I forgot. When I remembered three days later, I went to that place and found him there. He said: You have vexed me, young man. I have been here for three days waiting for you. Abu Dawud said: Muhammad bin Yahya said: This is, in our opinion, Abd al-Karim bin Abdullah bin Shaqiq (instead of "from Abd al-Karim from Abdullah bin Shaqiq"). Abu Dawud said: In a similar way I have been informed by Ali bin Abdullah. Abu Dawud said: I have been told that Bishr bin al-Sarri transmitted it from Abdullah bin Shaqiq.