'A'isha said, "I went to the Prophet ﷺ and said, 'Messenger of Allah, you give your wives kunyas, so give me a kunya.' He said, 'Take the kunya of your nephew, 'Abdullah.'"

عَنْ عَائِشَةَ ؓ قَالَتْ أَتَيْتُ النَّبِيَّ ﷺ فَقُلْتُ يَا رَسُولَ اللهِ كَنَّيْتَ نِسَاءَكَ فَاكْنِنِي فَقَالَ تَكَنِّي بِابْنِ أُخْتِكِ عَبْدِ اللهِ

'A'isha said, "Prophet of Allah, will you not give me a kunya?" He said, "Use the kunya of your son," i.e. 'Abdullah ibn az-Zubayr. She was given the kunya Umm 'Abdullah.

أَنَّ عَائِشَةَ ؓ قَالَتْ يَا نَبِيَّ اللهِ أَلاَ تُكَنِّينِي؟ فَقَالَ اكْتَنِي بِابْنِكِ يَعْنِي عَبْدَ اللهِ بْنَ الزُّبَيْرِ فَكَانَتْ تُكَنَّى أُمَّ عَبْدِ اللهِ