Hadith.2543 - Abu Ja'far عليه السلام was asked about a man who performed ghusl for his ihram and then trimmed his nails.
Imam عليه السلام replied: "He should wipe them with water and does not need to repeat the ghusl."
It is permissible for a person to perform ghusl in the morning and assume ihram in the evening.
If someone wears a garment before proclaiming the talbiyah, they should remove it from above and repeat the ghusl. There is no penalty.
However, if the garment is worn after proclaiming the talbiyah, it should be removed from below, and a sacrifice of a sheep is required. If done out of ignorance, there is no penalty.
After performing ghusl for ihram, it is allowed to wipe the head with a cloth or wrap it with an izar.
If a person sleeps after performing ghusl and before assuming ihram, it is recommended (as a matter of precaution) to repeat the ghusl.
