من لا يحضره الفقيه, volume 1, page 559

Hadith.1546 - Yunus ibn Ammar reported: I complained to Imam Jafar ibn Muhammad Al-Sadiq (as) about a man who was harming me. Imam (as) said: "Pray against him." I replied: "I have already prayed against him." Imam (as) said: "Not like that. Instead, refrain from sins, fast, pray, and give charity. Then, in the last part of the night, perform ablution thoroughly, stand up and pray two units (rak'ahs). While in prostration, say: 'O’ Allah (swt), so-and-so (mention his name) has harmed me. O’ Allah (swt), weaken his body, cut off his influence, shorten his lifespan, and hasten this upon him this year.'" He said: I did so, and it wasn't long before he perished.

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.1547 - Umar ibn Udhaynah narrated from a man from the family of Sa'd who said: I had a significant dispute with a man from Medina. I went to Imam Jafar ibn Muhammad Al-Sadiq (as) and mentioned the matter to him and asked: "Teach me something that might make Allah (swt) return my right to me." Imam (as) said: "If you want to deal with your enemy, then pray two or four rak'ahs between the grave and the pulpit (of the Prophet (sw) in Medina), or if you wish, pray in your house. Ask Allah (swt) for assistance, and take whatever you can afford and give it as charity to the first needy person you encounter." He said: I did what he commanded, and Allah (swt) resolved the matter in my favour and returned my land to me.

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.1548 - Ziyad al-Qandi narrated from Abd al-Rahim al-Qasir who said: "I entered Imam Jafar ibn Muhammad Al-Sadiq (as) and said: 'May I be your ransom, I have composed a supplication.' Imam (as) said: 'Leave aside your composition; if a matter befalls you, then seek help from the Messenger of Allah (sw) by praying two rak'ahs, dedicating them to the Messenger of Allah (sw).' I asked: 'How should I do this?' Imam (as) said: 'Perform ghusl (ritual purification), pray two rak'ahs, beginning them as you would begin a prescribed prayer (with the opening takbir and intention), and recite the tashahhud as you would in the obligatory prayer. When you finish the tashahhud and say the salutation (Tasleem), say: "O’ Allah (swt), You are Peace, and from You comes peace, and to You returns peace. O’ Allah (swt), send blessings upon Muhammad and the family of Muhammad, and convey my greetings of peace to the soul of Muhammad and the family of Muhammad. Peace be upon them, and the mercy and blessings of Allah (swt). O’ Allah (swt), these two rak'ahs are a gift from me to Your Messenger (sw). So reward me for them with what I hope and expect from You through Your Messenger, O’ Guardian of the believers." Then prostrate (sujud) and say: "O’ Ever-Living, O’ Self-Sustaining, O’ Living One who does not die, O’ Living One, there is no god but You, O’ Possessor of Majesty and Honor, O’ Most Merciful of the merciful," forty times. Then place your right cheek on the ground and say it forty times. Then place your left cheek and say it forty times. Then raise your head, stretch out your hands, and say it forty times. Then bring your hands to your neck and hold your index finger while saying it forty times. Then take hold of your beard with your left hand, weep, or pretend to weep, and say: "O’ Muhammad, O’ Messenger of Allah (sw), I complain to Allah (swt) and to you about my need. I complain to your rightly guided family about my need. Through you, I turn to Allah (swt) in my need." Then prostrate and say: "O’ Allah (swt), O’ Allah (swt)," until you are out of breath. Then say: "Send blessings upon Muhammad and the family of Muhammad, and do for me (such and such)." Abu Abdullah (as) said: 'I guarantee by Allah (swt), the Mighty and Majestic, that his need will be fulfilled before he rises.'"

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.