Musannaf Ibn Abi Shaybah

Hazrat Marrah narrates that I entered the mosque and I was saying in my heart that I will perform two rak'ahs at every pillar. A person was glaring at me with a sideways glance; I did not know him. When I sat down, I saw that Hazrat Abdullah bin Mas'ud (may Allah be pleased with him) was present. I went and sat near him, and that person was looking at me; he was with him and did not know my place. He said, "O Abu Abdur Rahman! One enters a mosque and says that he will perform two rak'ahs at every pillar?" He (Ibn Mas'ud) replied, "If he knows that Allah Almighty is already at the first pillar, he will not turn away from there until he completes his prayer." Hazrat Marrah says that I abandoned what I had intended to pray.