وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ سَالِمَ بْنَ عَبْدِ اللَّهِ، كَانَ إِذَا أَرَادَ أَنْ يُحْرِمَ دَعَا بِالْجَلَمَيْنِ فَقَصَّ شَارِبَهُ وَأَخَذَ مِنْ لِحْيَتِهِ قَبْلَ أَنْ يَرْكَبَ وَقَبْلَ أَنْ يُهِلَّ مُحْرِمًا ‏.‏

Yahya related to me from Malik that he had heard that when Salimibn Abdullah intended to go into ihram he would call for some scissorsand trim his moustache and beard before setting off and before goinginto ihram. Translation Not Available

Book Ref: Muwatta Imam Malik Book 20 Hadith 898
Web Ref:  Muwatta Imam Malik Book 20 Hadith 199