It is not permissible for the one who has entered ihram for Hajj or ‘Umrah to exit ihram or stop doing Hajj or ‘Umrah before completing it. If your father is able to go back to Makkah and complete the ‘Umrah, then it is obligatory for him to do that, and he cannot exit that ihram except by completing it, so long as he is able to do that.

Speaking the intention for Hajj or `Umrah out loud is an innovation and doing so loudly is even more sinful. The Sunnah is to make one's intention in the heart because Allah knows that which is secret and what is even more hidden.

Key Mistakes Made in Muzdalifah during Hajj: -Rushing from `Arafah, causing accidents -Stopping before reaching Muzdalifah because of being very tired. -Praying Maghrib and `Isha’ on the way to Muzdalifah -Not praying Maghrib and `Isha’ even after reaching Muzdalifah -Praying Fajr before its time starts. -Leaving Muzdalifah before spending the minimum period of time -Staying up on the night of Muzdalifah praying Qiyam, reading Quran and reciting Dhikr. -Staying in Muzdalifah until the sun has risen

Some of the mistake made in tawaf include: 1- Uttering the intention out loud; 2- Pushing and shoving too much when touching Black Stone; 3- Thinking touching the Black Stone is done for barakah; 4- Reciting a specific du’a in each circuit.