One who has Testimony there is no Oath on Him

“I once asked abu Ja‘far (a.s.), about the case of a man who has testimony; if it is obligatory on him to take an oath. He (the Imam) said, ‘No, it is not obligatory on him/”

“Abu ‘Abd Allah (a.s.), has said, ‘If a man presents testimony to prove his right, it then is not obligatory on him to take an oath; but if he does not present testimony and the defendant turns the oath to him and he…