أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ، قَالَ حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ، عَنْ جَبَلَةَ بْنِ عَطِيَّةَ، عَنْ يَحْيَى بْنِ الْوَلِيدِ بْنِ عُبَادَةَ بْنِ الصَّامِتِ، عَنْ جَدِّهِ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ مَنْ غَزَا فِي سَبِيلِ اللَّهِ وَلَمْ يَنْوِ إِلاَّ عِقَالاً فَلَهُ مَا نَوَى ‏"‏ ‏.‏

It was narrated from Yahya bin Al-Walid bin 'Ubadah bin As-Samit that his grandfather said: "The Messenger of Allah (PBUH) said: 'Whoever fights in the cause of Allah intending only to get an 'Iqal, he will have what he intended." Translation Not Available

Book Ref: Sunan An Nisai Book 25 Hadith 3138
Web Ref:  Sunan An Nisai Vol 1 Book 25 Hadith 3140