It was narrated from ‘Abdullah bin ‘Umar that: The Messenger of Allah (ﷺ) used to spend the last ten days of Ramadan in I’tikaf.
It was narrated from Ibn ‘Umar that: When the Prophet (ﷺ) observed I’tikaf, his bedding would be spread for him, or his bed would be placed there for him, behind the Pillar or Repentance.