Sayyiduna Abu Musa Ash'ari (may Allah be pleased with him) said to Sayyidah Aisha (may Allah be pleased with her): I want to ask you a question, though I also feel shy before you. She said: Ask your question and do not feel shy, I am your mother. Then he asked about a man who has intercourse with his wife but does not ejaculate. She replied that the Noble Prophet (peace and blessings be upon him) said: When the circumcised part touches the circumcised part, then ghusl becomes obligatory.