It is narrated from Sayyiduna Abdullah bin al-Zubayr and Sayyiduna Abdullah bin Ja'far (may Allah be pleased with them both) that they both gave the pledge of allegiance to the Messenger of Allah (peace and blessings be upon him) when each of them was seven years old. When the Messenger of Allah (peace and blessings be upon him) saw them, he smiled, stretched out his hand and took the pledge from them both.
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Hisham bin Urwah except Isma'il bin Ayyash, and no one narrated it from Isma'il except Ibn bint Shurahbil; this hadith is narrated from Abdullah bin al-Zubayr and Abdullah bin Ja'far (may Allah be pleased with them both) only through this chain, and it is narrated from the Messenger of Allah (peace and blessings be upon him) only with this chain as well."
Hadith Referenceالمعجم الأوسط / باب الحاء / 3402
Hadith Gradingمحدثین:فيه إسماعيل بن عياش وفيه خلاف، وبقية رجاله رجال الصحيح
Hadith Takhrij«قال الهيثمي: فيه إسماعيل بن عياش وفيه خلاف وبقية رجاله رجال الصحيح «مجمع الزوائد ومنبع الفوائد، ج 9، ص 285»» «أخرجه الطبراني فى «الكبير» برقم: 14763»