Maulana Mufti Ishaq rahmatullah ailah was answering in this video.

The great Islamic casuist Maulana Mufti Ishaq (rahimullah) was an expert in all jurisprudence of Ahle Sunnat wal Jamaat and had thorough understanding of Fiqa Jafria as well. He was an active propagator of WAHDAT-E-UMMAT (Unity of Muslim Ummah) and for this cause and spreading the true teaching of Islam; he strived and struggled in his whole life.

Maulana Mufti Ishaq rahmatullah ailah never associated himself to any group or maslak instead he always called himself a Muslim and his all lectures are purely related to the original primitive teaching of Islam. He was so humble and kind that he always welcomed the Ahle ilm (Man of Knowledge) to differ with him for the sake of truth .May Allah bless him with Jannat ul firdous . Ameen