Amr bin Murrah bin 'Abdullah عمرو بن مرة بن عبد الله بن طارق · The Book of Jihad

"A man asked the Messenger of Allah (ﷺ) which deed is best. He said: 'Faith in Allah.' He said: 'Then what?' He said: 'Jihad in the cause of Allah.' He said: 'Then what?' He said: 'Hajjun Mabrur.'" Hajj, that is accepted, or free of sin.

"The Messenger of Allah (ﷺ) said: 'Whoever fights in the cause of Allah intending only to get an 'Iqal, he will have what he intended."