Hadith.2550 - Ishaq ibn ‘Ammar narrated from Abu Basir: I said to Abu ‘Abdullah عليه السلام, "A man intends to perform Ifrad Hajj (individual Hajj), performs Tawaf around the Ka‘bah, and walks between Safa and Marwah. Then, he decides to turn it into ‘Umrah. What should he do?" Imam عليه السلام replied: "If he pronounced Talbiyah (the devotional call) after completing the Sa‘i and before trimming his hair, then he cannot perform Tamattu‘."