Abu Ishaq reported that he heard Abu'l-Ahwas say: I was along with Abu Musa and Abu Mas'ud as Ibn Mas'ud died and one of them said to the other: Do you find one like him besides him? Thereupon he said: Do you say this (no one can be his rival)? He was admitted (to the company of the Holy Prophet ( صلی اللہ علیہ وسلم )) whereas we were detained and he had been present in the company of Allah's Messenger ( صلی اللہ علیہ وسلم ) whereas we had been absent.

Abu Ahwas reported: We were in the house of Abu Musa along with some of the companions of 'Abdullah and they were looking at the Holy Book. 'Abdullah stood up, whereupon Abu Mas'ud said: I do not know whether Allah's Messenger, ( صلی اللہ علیہ وسلم ) has left after him one having a better knowledge (of Islam) than the man who is standing. Abu Musa said: If you say this, that is correct, because he had been present when we had been absent and he was permitted when we were detained.