A man who enters a state of janabah while having water that suffices him

Al-Awza'i said: I asked al-Zuhri: "If a man is in a state of janabah and has only enough water to perform ablution, what should he do?" He said: "He should perform tayammum." Abdah bin Abi Lubabah said: "He should perform ablution and also perform tayammum."

Al-Hasan was asked: "If a person in a state of janabah does not have the water needed for the ritual bath, what should he do?" He said: "He should perform tayammum."