From Al Da’ wal Dawa’ (The spiritual disease & cure) pg. 11

“If the presence of the heart along with complete earnestness for that which he is asking for was combined with the du’a,  in addition to it (the du’a) being done during one of the six timings of Ijabah (acceptance) which are,

a. The last third of the night

b. During the time of adhan

c. Between the adhan and Iqaamah

d. At the end of obligatory salat

e. On Friday when the Imam steps on the Minbar until the Salat is called on that day

f. The last hour of asr

and if this was met with the khushoo’ (humbleness) of the heart, along with the slave being broken, humble and weak in the Hands of His Lord and if the da’ee (supplicator) faced the qiblah (direction of prayer), and was in a state ofwudu (purity) and raised his hands to Allah, and began with Praising Him SWT and thanking Him, then praising His messenger S.A.W, and added to his request tawbah and istighfar (repentance and seeking forgiveness), then entered before Allah (i.e. feeling spiritual nearness to Him), and insisted on what he is asking for, and asked Him out of desire and fear, and invoked Him through His names, attributes and Oneness, and added a sadaqah (charity) to his du’a, this dua would not and  cannot be rejected. More so if it was accompanied with the ‘adi’ya (supplications) that were taught to us by the Prophet s.a.w. These supplications which are thought to hold the Great name.

From them is what is in the sunan and in sahih ibn Hibban fro the hadith of Abdullah bin Buraidah, from his father, that the prophet s.a.w heard a man say:

“Oh Allah I ask you by declaring that you are Allah, no God beside you, the One, the Self Sufficient, the One who Begets not, nor is Begotten, and the One who has none co-equal or comparable to Him”. He s.a.w replied: “he has asked Allah by His Great name, that if He were asked through it, He’d provide and if He was supplicated through it, He answered.” [Tirmidhi]

اللَّهُمَّ إِنِّي أَسْأَلُكَ بِأَنِّي أَشْهَدُ أَنَّكَ اللهُ الَّذي لا إِلهَ إِلا أَنْت, الأَحَدُ الصَّمَدْ , اللَّذي لَمْ يَلِدْ وَلَمْ يُولَدْ وَلَمْ يَكُنْ لَهُ كُفُواً أَحَدْ