Usayr bin Ahmar (may Allah have mercy on him) narrates that Sayyiduna Abu Dharr al-Ghifari (may Allah be pleased with him) entered the mosque and bowed in prayer hastily, so I said (to myself): "I think this old man does not know what kind of prayer he is offering." When he finished the prayer, he said: "I heard the Messenger of Allah (peace and blessings be upon him) saying: 'There is no servant who makes a single prostration to Allah but Allah raises him a degree by it and records a good deed for him by it.'"
Hadith Referenceالمعجم الأوسط / باب الميم / 5471
Hadith Takhrij«أخرجه الدارمي فى «مسنده» برقم: 1502، والبيهقي فى «السنن الكبرى» برقم: 4655، 4771، وأحمد فى «مسنده» برقم: 21703، 21712، 21852، والبزار فى «مسنده» برقم: 3903، وعبد الرزاق فى «مصنفه» برقم: 3561، 3562، 4847، وابن أبي شيبة فى «مصنفه» برقم: 4664، 4662، 8438، والطحاوي فى «شرح معاني الآثار» برقم: 2730»