Weak chain
graded by Zubair Ali Zai
Ash-Shama'il al-Muhammadiyya 136
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قَالَ: حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ، عَنْ سُفْيَانَ، عَنْ سَعْدِ بْنِ إِبْرَاهِيمَ، عَنِ ابْنٍ لِكَعْبِ بْنِ مَالِكٍ، عَنْ أَبِيهِ، أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ يَلْعَقُ أَصَابِعَهُ ثَلاثًا.
Reported on the authority of Ibn al-Ka'b ibn Malik, that his father said:
"The Prophet (Allah bless him and give him peace) used to lick his fingers three times.”
Cited in Ash-Shama'il al-Muhammadiyya (No. 136).