I took ʿAbdullah bin Abu Talha to Messenger of Allah ﷺ to perform Tahnik for him. (Tahnik was a custom among the Muslims that whenever a child was born they used to take it to the Prophet ﷺ who would chew a piece of date and put a part of its juice in the child's mouth). I saw the Prophet ﷺ and he had an instrument for branding in his hands and was branding the camels of Zakat.  

غَدَوْتُ إِلَى رَسُولِ اللَّهِ ﷺ بِعَبْدِ اللَّهِ بْنِ أَبِي طَلْحَةَ لِيُحَنِّكَهُ فَوَافَيْتُهُ فِي يَدِهِ الْمِيسَمُ يَسِمُ إِبِلَ الصَّدَقَةِ