It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) resided in Makkah Mukarramah for fifteen years: seven or eight years in such a way that he would see light and hear voices, and seven or eight years in such a way that revelation would descend upon him, and he resided in Madinah Munawwarah for ten years.