Musannaf Ibn Abi Shaybah 14479 — Those who ran in the bed

Uthman bin al-Aswad said: I saw Mujahid and Ata hastening from the houses of Banu Abbad up to the alley of Banu Abi Husayn. I asked Mujahid about it, and he said: This is the original bed of the valley (batn al-masil), but the people have reduced it.