Qawsun and the senior emirs frustrated Abu Bakr 's attempts to assert his authority .
Meanwhile , the reconciliation of Qawsun and Bashtak unraveled ; three weeks after Abu Bakr 's accession , Qawsun had Bashtak jailed .
Qawsun and the senior emirs frustrated Abu Bakr 's attempts to assert Qawsun 's authority .
Meanwhile , the reconciliation of Qawsun and Bashtak unraveled ; three weeks after Abu Bakr 's accession , Qawsun had Bashtak jailed .