It is narrated from Sayyiduna Ibn Amr (may Allah be pleased with him) that a man came to the Prophet (peace and blessings be upon him) and said, "O Messenger of Allah! A man is absent and he does not have the ability to use water; can he have intercourse with his wife?" The Prophet (peace and blessings be upon him) said: "Yes!"
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 7097
Hadith Gradingحکم دارالسلام:حديث حسن، وهذا إسناد ضعيف لضعف الحجاج.