Bunyaan-un-Marsoos" (بُنيَانٌ مَرصُوصٌ) is an Arabic phrase which is mentioned in the Glorious Qur'an in Surah As-Saff (61:4):
“Truly Allah loves those who fight in His Cause in battle array, as if they were a solid cemented structure”
It is also the title of a famous poem written by Maulana Altaf Hussain Hali.