مُسْنَدُ أَحْمَدَ
Musnad Ahmad 1411
The Musnad of az-Zubair bin al-'Awwam
It was narrated that az-Zubair bin al-"Awwam (رضي الله عنه) said: We used to pray Jumu’ah with the Prophet (ﷺ), then we would leave and seek the shade of the fortress, but we would not find any shade except (an area) the width of our feet.
Musnad Ahmad 1411Sahih because of corroborating evidence; this is a Da'if isn