Musa bin Nafi reported,

I arrived in Mecca performing tamattu with an umrah, four days before the Day of Tarwiyah. People said, "Your hajj will now become a Meccan one."So I went to Ata bin Abu Rabah and asked him for a ruling. Ata said, "Jabir bin Abdullah al-Ansari رضي الله عنهم told me that he performed hajj with the Messenger of Allah ﷺ in the year he brought sacrificial animals with him. They had entered ihram intending hajj alone.The Messenger of Allah ﷺ said, 'Release yourselves from your ihram, perform tawaf around the House and between Safa and Marwa, shorten your hair, and remain in a state of ihlal until the Day of Tarwiyah. Then enter ihram for hajj, and make what you came with into an umrah of tamattu.'They said, 'How can we make it an umrah of tamattu when we have already named it as hajj?'He said, 'Do as I command you. Had I not brought the sacrificial animal with me, I would have done exactly as I am commanding you to do. But nothing forbidden in ihram becomes lawful for me until the offering reaches its destination.' So they did as he instructed."

Muslim 2945

Sahih

و حدثنا ابن نمير حدثنا أبو نعيم حدثنا

موسى بن نافع قال

قدمت مكة متمتعا بعمرة قبل التروية بأربعة أيام فقال الناس تصير حجتك الآن مكية فدخلت على عطاء بن أبي رباح فاستفتيته فقال عطاء حدثني جابر بن عبد الله الأنصاري رضي الله عنهما أنه حج مع رسول الله ﷺ عام ساق الهدي معه وقد أهلوا بالحج مفردا فقال رسول الله ﷺ أحلوا من إحرامكم فطوفوا بالبيت وبين الصفا والمروة وقصروا وأقيموا حلالا حتى إذا كان يوم التروية فأهلوا بالحج واجعلوا التي قدمتم بها متعة قالوا كيف نجعلها متعة وقد سمينا الحج قال افعلوا ما آمركم به فإني لولا أني سقت الهدي لفعلت مثل الذي أمرتكم به ولكن لا يحل مني حرام {حتى يبلغ الهدي محله} ففعلوا

مسلم 2945صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Hajj
Chapter
Explanation of the types of ihram, that it is permissible to perform Hajj individually, tamattu, and qiran, the permissibility of adding Hajj to Umrah, and when the one performing qiran exits his ritual state
Numbering
Darussalam 2945
Muslim 2945