Ular nafl namozlar necha rakʼatdan iborat bo‘lishi haqida ixtilof qilganlar: ikki rakʼatmi, to‘rt rakʼatmi yoki uch rakʼatmi. Molik va ash-Shofiʼiy kechasi yoki kunduzi ixtiyoriy namozlar ikki rakʼatdan qilib o‘qilishi va har ikki rakʼatdan keyin salom berilishi kerak, dedilar. Abu Hanifa esa, agar ibodat qiluvchi xohlasa, ularni ikki rakʼatdan, yoki uch, yoki to‘rt, yoki olti, yoki sakkiz rakʼatdan o‘qishi mumkin, orada salom bermasdan, dedi. Bir guruh faqihlar kechasi va kunduzi o‘qiladigan namozlarni farqladilar: kechasi o‘qiladigan namozlar ikki rakʼatdan, kunduzi o‘qiladigan namozlar esa to‘rt rakʼatdan bo‘lади, dedilar.

They disagreed about supererogatory prayers, whether they are to be observed as two rak'as, four, or three. Malik and al-Shafi‘1 said that voluntary prayers during the night or the day are to be offered as two at a time with a salutation after every two rak^as. Abu Hanifa said that if the worshipper likes he may offer them as two at a time, or three, or four, or six, or eight, without offering a salutation in between. A group of jurists distinguished between prayers during the night and those during the day, saying that prayers during the night are two at a time while prayers during the day are four at a time.