[12]. Urine or stool or wind from anus.
[13]. I.e., had sexual intercourse with your wives.
[14]. This is the act of tayammum - dry ablution.
[15]. This verse which strongly reminds the believers of their binding pledge with Allāh, including that of respecting His ordained laws, is central to the believing community.
[16]. That is to be ardent upholders of Allah’s rights, not seeking fame or worldly gain.