As a child, I was always fascinated by magnets: why two ‘south’ or ‘north’ poles would never ever click with one another. It took a while to understand the reasoning behind it. And as with that, there’s a real wisdom behind this rule which prevents two saakin letters from meeting…
This rule has been looked at from a number of angles, however it was never formally mentioned on the site.
Man‘ iltiqaa’ al-saakinayn: preventing two saakins from meeting (following one another) is that rule which is sometimes taken for granted although the Arabic language heavily endorses it.
The rule states: if a word ending with a madd letter precedes a word which starts with a sukoon, the madd letter is dropped so as to avoid/prevent two saakins from meeting; this of course only applies when continuing recitation. In replacement of the madd letter, its respective diacritic takes places (kasrah for yaa, fat-ha for alif, dammah for waaw). Here, it is important to note that madd letters in the Arabic language do not have a diacritic. They are considered to be saakin, and hence why this rule exists.
Let’s look at some examples,
وَقَالَا الْحَمْدُ لِلَّهِ
when continuing: wa qaala-l-hamdu lillahi ( و قالَ الحمد لله )
when stopping: wa qaalaa .. alhamdu lillahi ( و قالا .. الحمد لله )
when continuing: ghayra muhilli-s–saydi ( غير محلِّ الصيد )
when stopping: ghayra muhillee .. as–saydi ( غير محلّي .. الصيد )
آمَنُوا اتَّقُوا اللَّهَ
when continuing: aamanu-t-taqu-llaha ( ءامننُ اتقواْ لله )
when stopping: aamanoo .. ittaqu-llaha ( ءامنو .. اتقواْ لله )
Previously we noted this rule indirectly, when it occurs with hamzatul wasl (said under “circumstance 3” and on).
Also, the hamzatul wasl post contained a brief mention of this rule. Found where quoted: “Finally, I want to give an ex..”
That’s all for this post. I hope it wasn’t too complicated to repel you away from the upcoming tajweed rule!
– Sukoon [Gateway To Arabic: page 48]
– Short vowels [Gateway To Arabic: page 23, 24]
– Long vowels [Gateway To Arabic: page 45, 46]
– Read more about rules of stopping [Tajweed Basics: Foundations and More: page 15]
Note, these documents are found on the resources page.
 منع التقاء الساكنين