مُسْنَدُ أَحْمَدَ
Musnad Ahmad 1493
Musnad Abu Ishaq Sa'd bin Abi Waqqas
It was narrated that Sa’d bin Malik said: I Said: O Messenger of Allah, the courageous man who shields others in battle, will his share and that of others be the same? He said: "May your mother be bereft of you, O son of Umm Sa’d! Are you given provision except by virtue of your weak ones?"
Musnad Ahmad 1493Sahih because of corroborating evidence; this is a weak isna