حَدَّثَنَا أَبُو نُعَيْمٍ، قَالَ‏:‏ حَدَّثَنَا دَاوُدُ بْنُ قَيْسٍ قَالَ‏:‏ حَدَّثَنِي مُوسَى بْنُ يَسَارٍ‏:‏ سَمِعْتُ أَبَا هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ‏:‏ تَسَمُّوا بِاسْمِي، وَلاَ تُكَنُّوا بِكُنْيَتِي، فَإِنِّي أَنَا أَبُو الْقَاسِمِ‏.‏

Anas ibn Malik said, "The Prophet, may Allah bless him and grant him peace, was in the market when a man said, 'Abu'l-Qasim!' The Prophet, may Allah bless him and grant him peace, turned towards him. He said, 'Messenger of Allah, I was calling this man.' The Prophet, may Allah bless him and grant him peace, said, 'Call yourselves with my name but do no use my kunya.'"