"When the Messenger of Allah wanted to perform I'tikaf, he would perform Fajr prayer and then he would enter his place of I'tikaf."
Jami` at-Tirmidhi Book 8, Hadith 110
← Previous Hadith "The Prophet would perform I'tikaf during the last ten (days) of Ramadan until Allah took him."

Jami` at-Tirmidhi Book 8, Hadith 109 Next Hadith → "The Messenger of Allah would Yujawir (stay in I'tikaf) during the last ten (nights) of Ramadan and he said: 'Seek the Night of Al-Qadr during the last ten (nights) of Ramadan.'"

Jami` at-Tirmidhi Book 8, Hadith 111