Hadithcore
Hadith #2102310

Abu Dawud added the words:

"for each prayer".

زَادَ أَبُو دَاوُدَ: { لِكُلِّ صَلَاةٍ } .‏

References2 variants
Sunnah.com reference
Book 2, Hadith 49
Arabic/English book reference
Book 2, Hadith 0