EIGHT SUNNATS OF RUKOO  

1. To say the takbeer of Rukoo.
2. To grasp the knees with both hands. (Male only)
3. To keep the fingers spread while grasping the knees.
4. To keep the calves of the legs (i.e. the section from the ankles to knees) straight.
5. To keep the back level.
6. To keep the head and the lower back in a straight line.
7. To recite Sub'haana rabbiyal 'azeem at least three times in Rukoo.
8. While getting up from Rukoo, the Imaam should say sami'allahu liman hamidah, the Muqtadee should (thereafter) say Rabbanaa lakal Hamd and the Munfarid (person who is performing his Salaat individually) should say both.