Times to do Wudu
Before all prayers.
Before making a sajdah tilaawat.
Before doing taawaf.
Before touching and handling the Qur'an.
Before going to bed.
Before taking a bath.
Before saying adhan.
Before saying khutbah.
Before saying religious instructions.
Before doing dhikr.
After rising from sleep.
Parts of Wudu
To wash the whole face once from forehead to chin, ear to ear.
To wash both hands to elbow.
To wipe ¼ of the head.
To wash the feet up to the ankles once.
To have the intention.
To start wudu with Bismillah.
To wash hands up to wrist before washing the face.
To rinse mouth three times with water.
To brush the teeth.
To sniff water three times.
To clean the space between fingers and toes.
To wipe the whole head.
To wipe both ears.
To wash right limb first, then left.
To wash each limb three times.
To follow the sequence.
Things to avoid
To use too much or too little water.
To splash water.
To wash the limbs more than thrice or head more than once.
Breakers of Wudu
Passing urine or stool.
Bleeding from any parts of the body.
Vomiting a mouthful.
If spit contains overwhelming element of blood.
Sleeping with one's back or belly flat on the bed or reclined against a support.
Breaking into big laughter during prayer.