This Hadīth encourages spending in the cause of Allah, especially in matters which contribute to the war effort such as horses, she-camels or the like. Allah multiplies the reward for such spending seven hundred times. In the Qur'an, Allah, the Almighty, says: {The example of those who spend their wealth in the way of Allah is like a seed [of grain] which grows seven spikes; in each spike is a hundred grains. And Allah multiplies [His reward] for whom He wills. And Allah is all-Encompassing and Knowing.} When animals are bridled, this enables their owner to control them better. So, it was kind of that man to give bridled she-camels, and as a result Allah rewarded him with seven hundred she-camels, all of which were bridled.
صحيح مسلم, ترقيم محمد فؤاد عبد الباقي, دار إحياء التراث العربي, بيروت. نزهة المتقين شرح رياض الصالحين، لمجموعة من الباحثين, مؤسسة الرسالة, الطبعة الرابعة عشر, 1407ه. بهجة الناظرين شرح رياض الصالحين، لسليم الهلالي, دار ابن الجوزي. دليل الفالحين لطرق رياض الصالحين، لمحمد بن علان الصديقي, دار الكتاب العربي. كنوز رياض الصالحين، بإشراف حمد العمار, دار كنوز إشبيليا, الطبعة الأولى, 1430ه.