Is it fasted on Mawlid al-Nabi?

Yes, people can fast on Mawlid to welcome the night of the Prophet's birthday and with the intention of worship if they want.
There is nothing in the Qur’aan to say that we should celebrate the Mawlid or birthday of the Prophet (peace and blessings of Allaah be upon him). The Prophet himself (peace and blessings of Allaah be upon him) did not do this or command anyone to do it, either during his lifetime or after his death. Indeed, he told them not to exaggerate about him as the Christians had exaggerated about Jesus (upon whom be peace). He said: “Do not exaggerate about me as the Christians exaggerated about the son of Maryam. I am only a slave, so say, ‘The slave of Allaah and His Messenger.’” (Reported by al-Bukhaari).
What has been reported is that the Prophet (peace and blessings of Allaah be upon him) made the day of his birth a day of worship, which is different to celebration. He was asked about fasting on Mondays, and he said: “That is the day on which I was born and the day on which I was entrusted with the Mission or when I was first given Revelation.” (Reported by Muslim, al-Nisaa’i and Abu Dawood).

Konular

• The Twelve Months of the Islamic Lunar Calendar
• Hajj Requirements/Saudi Arabia
• Saudi Arabia: Hajj/Umrah Pilgrimage
• Umrah packages by H.Mujaddedia hajj travels& tours
• Saudi Arabia to increase Hajj quotas for first time in five year
• Saudi Arabia allocates Indonesia haj quota of 221,000 per year
• Indonesia would welcome bigger haj quota
• Saudi Arabia increases India's annual Haj quota to 1.70 lakh
• Haj quota increases ruled out by Saudi Arabia
• Saudi Arabia approves additional haj quota
• Indonesia: Saudi Arabia agrees to increase Hajj quota
• Indonesia says Saudi Arabia increased its Hajj quota
• Saudi Arabia rolls out 'biggest increase' in India's Haj quota, hikes it by 34,500
• India gets quota of 136,020 pilgrims for Haj
• SA Hajj quota re-instated as stricter accreditation process outlined
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• Malaysia’s Haj quota is 30,200 this year
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• Number of Hajj pilgrims from Azerbaijan to exceed quota this year
• 30,000 Bangladeshis to miss Hajj this year due to quota restriction
• Bangladesh Haj quota reduction may continue for next year
• Haj quota for Pakistan increased
• Pakistan urges Saudi govt to increase its Hajj quota
• Iraq’s hajj quota to increase by 2,200 next year
• Iran pilgrims to join this year's Hajj: Saudi Arabia
• UZBEKISTAN: Over 160 year wait to go on haj pilgrimage?
• Uzbekistan: Is Hike in Mecca Pilgrimage Quota Another Sign of Thaw?
• Uzbekistan to ask Saudi Arabia to increase Umrah quota