Tawaafe widaa can be performed any time after tawaafe ziyaarat but it is more better to perform it at the very time of departing.
1. When you decide to depart from Makkah Mukarramah, perform tawaafe widaa (farewell tawaaf) which is waajib.
2. Perform two raka'at of tawaaf at Maqaamah Ibraaheem and then go to the well of Zamzam and facing qiblah drink its water in three draughts to your fill.
3. After drinking water, go to Multazam and placing your breast and right cheek against the wall of Ka'bah, cling to the cloth and seek forgiveness in total humility.
Shed tears, repent, read durood shareef, praise Allah and make du'aa for as long as possible.
4. After du'aa, make istilaam of Al Hajarul Aswad and depart with a heart filled with sadness, for you do not know whether you will have the privilege of visiting these holy places again.
Mas'alah: If one has returned home without performing this tawaaf, then he will be liable to give dam.
Mas'alah: If a nafl tawaaf was performed after tawaafe ziyaarat, then this nafl tawaaf will be sufficient in lieu of tawaafe widaa even if no niyyah of tawaafe widaa was made.
Mas'alah: Tawaafe widaa is waived from a women who is in the state of haydh (menstruation) or nifaas (period after child birth) because it is not permissible for her to enter the Masjid in this state.
Mas'alah: After tawaafe widaa, a pilgrim can enter Al Masjidul Haraam again for Salaat or tawaaf.
Abdullah Ibne 'Umar (may Allah be pleased with him) reports that Rasulullah sallallahu alayhi wasallam said,
"When you meet a Haajji (on his way home) then greet him, shake hands with him and ask him to beg forgiveness of Allah on your behalf before he enters his home, for his prayers of forgiveness is accepted since he is forgiven by Allah for his sins." (Ahmad)