It wasnarrated from Talhah bin 'Ubaidullah that he heard theMessenger ofAllah (ﷺ) say:
"Hajj is Jihad and 'Umrah is voluntary." (TR)
English reference (TR): Vol. 4, Book 25, Hadith 2989 (TR)
Arabic reference (TR): Book 25, Hadith 3103 (TR)