Reference: Jaami’u Bayaan al-‘Ilm – Volume 2, Page 841
‘Uqbah ibn Muslim said:
I accompanied Ibn ‘Umar (radhi-yAllaahu ‘anhumaa) for 34 months, and [during this time] whenever he was asked a question, he would respond with: I do not know. He then turned to me and said: Do you know what these [people] wanted, they wanted to use our backs as a bridge for themselves to Hell.
