ACCOUNT OF THE DESPATCH OF EPISTLES BY THEAPOSTLE OF ALLAH, MAY ALLAH BLESS HIM, TO THECHIEFS, INVITING THEM TO JOIN THE FOLD OF ISLAM,AND WHAT THE APOSTLE OF ALLAH, MAY ALLAHBLESS HIM, WROTE TO THE PEOPLE OF ARABIA ANDOTHERS-16

He (Ibn Sad) said: Muhammad IbnUmar informed us: Ibn Abi Dhi’b
informed us: ‘Sàlih the mawlà of al-Taw’amah informed us:
That the Apostle of Allah, may Allah bless him, made peace with the
people of Maqna on one-fourth of their fruits and one-fourth of their
spun (thread).
Muhamnad Ibn `Umar said: The people, of Maqna were Jews living
on the coast of the sea; the people of Jarba and Adhruh were also Jews.
The word tayyibah means pure that is, pure gold, and the term … means,
when he inteded to move out for fighting.