It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them) that Sayyiduna Umar bin Khattab (may Allah be pleased with him) said: Whoever plaits his hair (at the time of Ihram), he should shave his head when exiting Ihram, and do not plait the hair in such a way that it resembles talbeed.

It is narrated from Sa'id bin al-Musayyib that Sayyiduna Umar bin Khattab, may Allah be pleased with him, said: Whoever ties, plaits, or applies gum or does talbeed to the hair (at the time of Ihram), then it becomes obligatory upon him to shave his head.