As Dhu’ al-Riya’satayn strove earnestly for the Commander of the faithful, undertook his right, sacrificed for him his own soul and the soul of his brother Abu’ Muhammad al-Hasan b.
Daytoy ket sapasap a naipagpagarup a ti Sindhind ket isu ti Brahmasphuta-siddhanta ni Brahmagupta.[5]