Verily, that indeed was a manifest trial.meaning, it was clearly a test when he was commanded to sacrifice his son, so, he hastened to do it, in submission to the command of Allah and in obedience to Him.Allah said:وَإِبْرَهِيمَ الَّذِى وَفَّىAnd of Ibrahim who fulfilled all that. (53:37) and,وَفَدَيْنَاهُ بِذِبْحٍ عَظِيمٍ