Shabi reported that one who had seen the Prophet (SAW) informed him that he observed a distant, withdrawn grave. So he arranged his sahabah in rows and prayed (the funeral salah) over it.
Shabi was asked who had infolmed him, and he said, “Ibn Abbas.”
[Ahmed255, Bukhari 1319, Muslim 954, Abu Dawud 3196, Nisai 2019, Ibn e Majah 1530]