‏الصيام : Hadeeth No:2619 Salim reported on the authority of his father that a person saw Lailat-ul- Qadr on the 27th (of Ramadan). Thereupon Allaah's Prophet (sallAllaahu alayhi wa sallam) said: I see that your dreams agree regarding the last ten (nights of Ramadan). So seek it on an odd number (of these ten nights)....

‏الصلاة : Hadeeth No:1567 'A'isha reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) used to observe two rak'ahs of Sunnah (prayer) when he heard the Adhin and shortened them. (This hadith has been narrated by the same chain of transmitters and in the hadith narrated by Usama the words are:" When it was dawn".)...