Pilgrims combine salatul ______ and ________ in Muzdalifah.

Pilgrims combine Maghrib and Isha prayers in Muzdalifah. Muzdalifah is a plain east of Mina and west of Arafat in Saudi Arabia. It is a significant location for pilgrims who are performing Hajj, the annual Islamic pilgrimage to Mecca. As part of the Hajj rituals, pilgrims are required to spend a night at Muzdalifah after performing the standing (wuquf) at Arafat. In Muzdalifah, they combine Maghrib and Isha prayers by praying them together at the time of Isha, with a single Adhan and two separate Iqamahs. This is based on the practice of Prophet Muhammad (PBUH), who combined these two prayers during his pilgrimage. The combination of these two prayers is an exception made for pilgrims during Hajj and is not a regular practice in daily prayers. In summary, pilgrims combine Maghrib and Isha prayers in Muzdalifah during the Hajj pilgrimage. This is based on the practice of Prophet Muhammad (PBUH) and is an exception made for pilgrims during Hajj.