Sunan Ibn Majah
2852
Daif Isnaad+3

It was narrated from ‘Ubadah bin Samit that the Prophet (ﷺ) awarded one quarter of the spoils to those who attacked the enemy at the beginning and one third to those who attacked at the end

Daif IsnaadAl-Albani
Daif IsnaadMuhammad Fouad Abd al-Baqi