'Umar said, "Sometimes some of the men of Quraysh sat at the door
of Ibn Mas'ud. When the shadows shifted from west to east, he said, 'Get
up, Any time spent here after this is for Shaytan.' He made everyone he
passed by get up. While we were getting up, someone said to him, 'This
is the mawla of the Banu'l-Hashas who composes poetry.' 'Umar called and
said, 'What have you got to say?' The man said:
'Say farewell to Salma if you prepare to go in the morning,
White hair and Islam is enough prohibition for a man'
'Umar said, 'Enough! You have spoken the truth. You have spoken the truth.'"