In Surah Al-A'raaf (196): Innaa waliyyiyAllah... hould I lengthen yi here for two harakats?

Question
Assalamualaikum warahmatullah,

Thank you very much for this informative website.
I have one simple question regarding Mad Tamkin. In Surah Al-A'raaf (196): Innaa waliyyiyAllah...
Should I lengthen yi here for two harakats? Based on my understanding of your answer (6 Safar 1423/Apr. 19, 2002) , the lengthening is two vowels (two harakats) for Mad Tamkin. Is it right? I checked this by listening to some qaris but all of them recite yi with one harakat.

Would you please explain this to me?
JazakAllahhu khairan kathira. May Allah bless you.

Answer
Wassalam Alaikum Wa Rahmatullahi Wa Barakatuh,
The word  in the phrase  has two ya', the first ya' has a Shadda and a kasra and it is therefore required to give it the timing of a ya' saakinah then a vowel. The second Ya has a Fathah. If you look carefully at this example there is no medd tamkin or natural medd here because there is no letter of medd. Therefore the ya is only lengthened one vowel count (harakah) because of the ruling that all voweled letters are lengthened only one haraka. This is unlike the example of  in which the first Ya occurs with a Shadda and a kasra while the second Ya has no vowel (meaning it is saakinah). This second Ya is therefore a letter of medd and should be lengthened two vowel counts which are the two counts of the natural medd.
The early scholars of tajweed did not use the term medd tamkin. The circumstances for the modern books in which the term medd tamkin is used are nothing more than the natural medd with an accent, or emphasis because of the shaddah on the ya’.

In  the case of stopping on this same word, , we note that the first ya' is pronounced as stated above with a shadda and a kasra, but the second ya is now pronounced with a sukoon (because we always put a presented sukoon on the last letter of a word when stopping on it) and therefore this ya becomes a letter of medd which should be lengthened two vowlel counts, which are the counts of the natural medd.
Wa Jazakum Allahu Khairan.  May Allah bless you also, and all Muslims.
Wassalam Alaikum Wa Rahmatullah