من لا يحضره الفقيه, volume 2, page 452

Hadith.2945 - It was narrated from Imam (as) that he said: "Whoever brings a sacrificial animal during Umrah should slaughter it before shaving his head." Imam (as) further said: "And whoever brings a sacrificial animal while performing Umrah should slaughter it at the designated slaughtering place (Manhar), which is between Safa and Marwah, at al-Hazwarah."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.2946 - Ali ibn Ri'ab narrated from Misma' ibn Abdul-Malik, from Abu Abdullah (as), regarding a man who performs an independent Umrah (Umrah Mufradah), then performs the Tawaf of obligation around the Ka'bah, but has marital relations with his wife before performing Sa'i between Safa and Marwah. Imam (as) said: "He has invalidated his Umrah, and he must offer a camel (badnah) as a penalty. He should remain in Mecca until the month in which he performed the Umrah has passed. Then he must go to the Miqat specified by the Messenger of Allah (swt) (peace be upon him and his family) for the people of his region, enter into Ihram from there, and perform a new Umrah."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.