It wasnarrated that Ibn 'Umar said:
"We used to be guarded in ourspeech even with our wives at the time of the Messenger of Allah(ﷺ), fearing that Qur'an may be revealed amongst us, but when theMessenger of Allah (ﷺ) died, we began to speak freely." (FR)
English reference (FR): Vol. 1, Book 6, Hadith 1632 (FR)
Arabic reference (FR): Book 6, Hadith 1701 (FR)