صحیح ابن حبان
Ibn Hibban
كتاب الصلاة
Book of Prayer
باب شروط الصلاة - ذكر لفظة قد توهم غير المتبحر في صناعة العلم أن الصلاة بلا نية جائزة
Chapter on Conditions of Prayer - Phrase that might mislead some into thinking prayer without intention is valid.
1 hadith
Hadith 1718
Sayyiduna Abu Dharr Ghifari (may Allah be pleased with him) narrates: My beloved (the Prophet, peace and blessings be upon him) advised me regarding three things: To obey and follow (the ruler), even if he is a slave with mutilated nose and ears. When you make broth, add more water to it. Then look at one of your neighbors’ houses and give them a suitable portion from it. Perform the prayer at its (prescribed) time. If you find the imam has already performed the prayer, then you have protected your prayer; otherwise, (if you perform it again with the imam) your second prayer will be considered voluntary.