Musannaf Ibn Abi Shaybah

Hazrat Muhammad bin Hilal says that I saw Hazrat Saeed bin Al-Musayyib, Hazrat Umar bin Abdul Aziz, Hazrat Salim, Hazrat Urwah bin Zubair, Hazrat Jafar bin Zubair, Hazrat Abdullah bin Abdullah bin Utbah, and Hazrat Abu Bakr bin Abdur Rahman bin Harith bin Hisham; all these personalities did not trim their mustaches excessively and would groom them beautifully.