Banu Hashim
In 617, the Quraysh enforced a boycott against the Banu Hashim. Muhammad along with his supporters from Banu Hashim, were cut off in a pass away from Mecca. All social relations with the Banu Hashim were cut off and their state was that of imprisonment. Before it many Muslims migrated to Abyssinia (now Ethiopia). Abu Bakr, feeling distressed, set out for Yemen and then to Abyssinia from there. He met a friend of his named Ad-Dughna (chief of the Qarah tribe) outside Mecca, who invited Abu Bakr to seek his protection against the Quraysh. Abu Bakr went back to Mecca, it was a relief for him, but soon due to the pressure of Quraysh, Ad-Dughna was forced to renounce his protection. Once again the Quraysh were free to persecute Abu Bakr.