and if you have reason to fear that you might not act equitably towards orphans then marry from among women such as are lawful to you two or three or four but if you have reason to fear that you might not be able to treat them with equal fairness then one or those whom you rightfully possess. this will make it more likely that you will not deviate from the right course.
وإن خفتم ألا تقسطوا في اليتامى فانكحوا ما طاب لكم من النساء مثنى وثلاث ورباع فإن خفتم ألا تعدلوا فواحدة أو ما ملكت أيمانكم ذلك أدنى ألا تعولوا