ثُمَّ جَعَلْنَـٰهُ نُطْفَةً فِى قَرَارٍ مَّكِينٍ
Thumma jaAAaln a hu nu t fatan fee qar a rin makeen in and then We cause him to remain as a drop of sperm in [the womb's] firm keeping,
 - Mohammad Asad
then placed him as a drop of semen in a firm resting place,
 - Muhammad Farooq-i-Azam Malik
then placed each 'human' as a sperm-drop1 in a secure place,
 - Mustafa Khattab
Then placed him as a drop (of seed) in a safe lodging;
 - Marmaduke Pickthall
Then We placed him as (a drop of) sperm in a place of rest firmly fixed; 2873
 - Abdullah Yusuf Ali