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.
May Allah grant him with Jannat ul firdous for his sincere efforts for the Muslim Nation.
Ameen