What are the correct timings of maddul-leen in for example..

Bismil-Lāhir-Rahmānir-Raheem.

’Assalāmu ‘alaikum wa rahmatul-Lāhi wa barakātuh,

What are the correct timings of maddul-leen in for example 2 : 2:

A. rayb; rayyyb; rayyyyyb;

(wherein y has a length of one vowel count)

or

B. rayyb; rayyyyb; rayyyyyyb?

What are the correct timings of maddul-‘āridhi lissukoon in for example 114 : 1:

C. naas; naaaas; naaaaaas;

or

D. naaas; naaaaas; naaaaaaas?

Jazākal-Lāhu khairā.

Salāmun ‘alaikum wa rahmatul-Lāhi wa barakātuh.

Answer

Wa alaikum assalaam wa rahmatullahi wa barakatuh,

The lengthening of can be two, four, or six vowels counts when stopping on the word.  The examples in B  given in the question then are correct.

The lengthening of  can also be two, four, or six vowel counts, and C given in the question would be correct for the length of the alif.  

There is a relationship between and  wherein is always equal to or less than .  Please see http://www.abouttajweed.com/al-mudood_part_7_medd_'aaridh_leen.htm

Wa iyyaakum wa-l-muslimeen.

Wa assalaam alaikum wa rahmatullahi wa barakatuh.