من لا يحضره الفقيه, volume 2, page 488

Hadith.3041 - It is narrated from Mu'awiya ibn Ammar who said: "I asked Abu Abdullah (as) about the Day of the Greater Pilgrimage (Yawm al-Hajj al-Akbar). He said, 'It is the Day of Sacrifice (Yawm al-Nahr), and the Lesser Pilgrimage (al-Asghar) is the Umrah.'"

Translation: Bab Ul Qaim Publications·Thaqalayn link·The Arabic above is the original.

Hadith.3042 - It is narrated from Sulaiman ibn Dawood al-Minqari, from Fudhayl ibn Iyadh, from Abu Abdullah (as), in the conclusion of a narration where he said: "It was called the Greater Pilgrimage (Hajj al-Akbar) because it was the year in which both Muslims and polytheists performed Hajj, and after that year, the polytheists no longer performed Hajj."

Translation: Bab Ul Qaim Publications·Thaqalayn link·The Arabic above is the original.

Hadith.3043 - It is narrated from Suwayd al-Qallāʾ, from Muhammad ibn Muslim, from Imam Abu Jaʿfar (as), who said: "The sacrifice (udhiyya) is obligatory upon anyone who can afford it, whether young or old, and it is also a sunnah."

Translation: Bab Ul Qaim Publications·Thaqalayn link·The Arabic above is the original.

Hadith.3044 - It is narrated from Al-ʿAlāʾ ibn al-Fuḍayl, from Abu ʿAbdillah (as), that a man asked him about the sacrifice (udhiyya). Imam (as) replied: "It is obligatory upon every Muslim except for one who cannot afford it." The questioner then asked: "What do you say regarding the dependents?" Imam (as) said: "If you wish, you may perform it for them, and if you wish, you may not. However, as for you, do not neglect it."

Translation: Bab Ul Qaim Publications·Thaqalayn link·The Arabic above is the original.