At least 700kg of silk and 120kg of gold and silver threads were used to cover the Ka’aba, the building at the centre of Islam's most sacred mosque, Al-Masjid al-Haram, in Mecca Getty

Hajj, the annual Muslim pilgrimage occurs from the 8th to 12th of day of Dhu al-Hijjah, the last lunar month of the Islamic calendar.

Millions of devotees from around the world gather in Mecca, Saudi Arabia to offer their prayers by circling the Kaaba seven times.

Hajj, the fifth of Islam's pillars of faith, is a mandatory religious duty which must be carried out once by every adult Muslim in their lifetime if they are physically and financially able.

This year the pilgrimage will take place from 1-6 October and like every year, hundreds of thousands of Muslims are expected to enter the Masjid al-Haram complex to do Tawaf, a ritual of circling the Kaaba.

Those who successfully complete the Hajj pilgrimage are honourably known as the Hajji .

Below are some messages and quotes to commemorate the holy Islamic event.

1. "O Allah! I turn to You, repose trust in You and seek Your pleasure. I beseech You to bless my journey, fulfil my wishes and include me among those superior to me whom You honour today. Hajj Mubarak"

2. "The blessings of Hajj The Prophet (PBUH) said: 'Whoever performs Hajj for the sake of pleasing Allah and therein utters no word of evil, nor commits any evil deed, shall return from it as free from sin as the day on which his mother gave birth to him'"

3. "Our Lord! I have settled some of my offspring in an uncultivable valley near unto Your Holy House, our Lord! that they may establish proper worship; so fill the hearts of some among men with love toward them, and provide them with fruits in order that they may be thankful.} (Ibrahim 14: 37)"

4. "Hajj offered with all its requirements is reward with Paradise." (Muslim, 1349) Hajj Mubarak

5. "May Allah's blessing light your way, strengthen your faith and bring joy to your heart as you praise and serve Him today, tomorrow and always. Hajj Mubarak"

6. "May Allah Make All Your Dreams And Wishes Come True. Hajj Mubarak"