question #1 Sahih Muslim 1240e, Book 15, Hadith 221 : What instructions did the Prophet Muhammad (ﷺ) give to his companions regarding the change of Ihram during the Hajj season?

Ibn Abbas (Allah be pleased with them) reported that Allah’s Messenger (ﷺ) observed the morning prayer at Dhu Tawa (a valley near Mecca) and arrived (in Mecca) when four days of Dhul-Hijja had passed and he commanded his Companions that they should change their Ihram (of Hajj) to that of Umra, except those who had brought sacrificial animals with them.