عَنْ أَنَسٍ رَضِيَ اللَّهُ عَنْهُ قَالَ انْطَلَقْتُ بِعَبْدِ اللَّهِ بْنِ أَبِي طَلْحَةَ إِلَى رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ حِينَ وُلِدَ فَأَتَيْتُ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ وَهُوَ فِي عَبَاءَةٍ يَهْنَأُ بَعِيرًا لَهُ فَقَالَ لِي أَمَعَكَ تَمْرٌ قُلْتُ نَعَمْ فَتَنَاوَلَ تَمَرَاتٍ فَأَلْقَاهُنَّ فِي فِيهِ فَلَاكَهُنَّ ثُمَّ حَنَّكَهُ فَفَغَرَ الصَّبِيُّ فَاهُ فَأَوْجَرَهُ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ فَجَعَلَ الصَّبِيُّ يَتَلَمَّظُ فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ أَبَتِ الْأَنْصَارُ إِلَّا حُبَّ التَّمْرِ وَسَمَّاهُ عَبْدَ اللَّهِ
It is narrated from Sayyiduna Anas (may Allah be pleased with him), he says: When Sayyiduna Abdullah bin Abi Talha (may Allah be pleased with him) was born, I took him to the Messenger of Allah (peace and blessings be upon him). The Prophet (peace and blessings be upon him) was wearing a cloak and was applying some sulfur to his camel. The Prophet (peace and blessings be upon him) said to me: "Do you have any dates?" I said: "Yes." Then the Prophet (peace and blessings be upon him) took those dates, chewed them in his blessed mouth, then took the child and gave him tahneek in such a way that the child opened his mouth and the Prophet (peace and blessings be upon him) put the chewed material from his mouth into the child's mouth, and the child ate it and began to taste its flavor. The Prophet (peace and blessings be upon him) said: "The Ansar love nothing except dates." Then the Prophet (peace and blessings be upon him) named the child Abdullah.