I'm very happy to have found this wonderful homepage, especially as it exactly follows the manhaj of my Shaykh Ayman Swaid and I wonder if you are one of his pupils. I would appreciate if you wrote a bit on the founders of the homepage, also to assure people about the authenticity and reliability of the provided information- which is mashallah very precise.
I am teaching tajweed since a few years, but there is one basic rule that always confuses me, maybe because there is a difference of pronunciation among the reciters:
I'd like to know the proper way of pronouncing the ikhfa shafawee, such as in "kalbuhum basitun"; and of the iqlab, as in "min ba'd". Is there complete itbaq al-shafatayn (the sound of a full meem) or do we leave a furja between the lips? Please give me a detailed answer for both rulings and the differences of opinion among the qurra'. Jazakumullahu khayran.
Jazakum Allahu khairan. May Allah make you of the best of the Muslim nation, those that learn the Qur’an and teach it.
There has been information about the abouttajweed staff on previous questions and answers: Please see: http://www.abouttajweed.com/051003.htm
The staff that have ijaazah have it from the sanad of sheikh Ayman, but from one of his students, not him directly.
As to your question on the ikhfa shafawee and the iqlaab and the positioning of the lips for both, please see the following previous questions and answers which have quite a bit of detail:
Wa iyyakum wa assalaam alaikum wa rahmatullah.