Four Du’as in exchange for four dirhams

On page 114, volume 1 of Faizan-e-Sunnat, in the chapter ‘Faizan-e-Bismillah’, Shaykh-e-Tareeqat, Ameer-e-Ahl-e-Sunnat, the founder of Dawat-e-Islami, ‘Allamah Maulana Abu Bilal Muhammad Ilyas ‘Attar Qaadiri Razavi Ziyaee  دَامَـتْ بَـرَكَـاتُـهُـمُ الْـعَـالِـيَـه has narrated a parable:

One day, while Sayyiduna Mansoor Bin ‘Ammar رَحْمَةُ اللهِ تَعَالٰی عَلَيْه was delivering a speech, a deserving person asked him for four dirhams. He رَحْمَةُ اللهِ تَعَالٰی عَلَيْه made an announcement: I will make four Du’as for the one who gives him four dirhams. At that time, a slave was passing by; having heard the merciful voice of a perfect pious saint he stopped and gave the beggar the four dirhams he had. Sayyiduna Mansoor رَحْمَةُ اللهِ تَعَالٰی عَلَيْه asked him, ‘Tell me which four Du’as you want me to make for you.’ He humbly replied:

1     I be made free from slavery.

2      I be given the reward for these dirhams.

3     My master and I be privileged to make repentance.

4      My master, you, all the attendees and I be forgiven.

Sayyiduna Mansoor Bin ‘Ammar رَحْمَةُ اللهِ تَعَالٰی عَلَيْه raised his hands and made Du’a. The slave got late to reach his master. When the master asked for the delay he told him the event: His master asked, ‘What was the first Du’a’? The slave replied, ‘I humbly said: Please make Du’a that I be made free from slavery.’ Having heard this, the master spontaneously said, ‘Go, you are free from slavery.’ Then he asked about the second Du’a. He replied, ‘I want the replacement for the four dirhams that I have given’. His master replied, ‘I am giving you four thousand dirhams in return for four dirhams.’ He then asked about the third Du’a. The slave replied, ‘My master and I be privileged to repent of our sins. Hearing this, his master started making Istighfar and said: ‘I repent of all my sins in the Court of Allah عَزَّوَجَلَّ.’ The master asked about the fourth Du’a: He replied: I made this request: May my master, you, all the attendees of Ijtima’ and I be forgiven!’ After hearing this, his master said! ‘I have done the three things that I could do, but the fourth one, forgiveness for all, is beyond me. On the same night, the master had a dream in which