(in the pure Tradition of the Prophet pbuh)
Bathing however, is preferable to any of the above-mentioned possibilities as is clear in the hadith of `Abullaah ibn Qais (rad) who said: “I asked ‘Ai’ishah (rada) : “What did the Prophet (pbuh) do when in a state of janaba? Did he bathe before sleeping or sleep before bathing?” She answered: “He did all of those things. Sometimes he bathe and then slept. And sometimes he performed wudhuu’ and then slept.” I said: “Praise be to Allah who made things flexible.””[Muslim, Ahmad and Abu `Auwaana].