Praise be to Allah.
It was reported in the hadith of al-Miqdam ibn Ma’di Karb that the Prophet (peace and blessings of Allah be upon him) said:
“The martyr (shahid) has seven blessings from Allah: he is forgiven from the moment his blood is first shed; he will be shown his place in Paradise ; he will be spared the trial of the grave; and he will be secure on the Day of the Greatest Terror (the Day of Judgement); there will be placed on his head a crown of dignity, one ruby of which is better than this world and all that is in it; he will be married to seventy-two of al-hur al-‘iyn ; and he will be permitted to intercede for seventy of his relatives.”
According to another report, the martyr has six blessings from Allah. According to other reports (the number is) six, or nine, or ten. (Narrated by al-Tirmidhi, who said it is a hasan hadith. Also narrated by Ibn Majah in al-Sunan, by Ahmad, by ‘Abd al-Razzaq in al-Musannaf, by al-Tabarani in al-Kabir, and by Sa’id ibn Mansur in al-Sunan).
And Allah knows best.