🤲 The time of acceptance of a Duaa differs from person to person, and depends upon the situation.
1️⃣ When Khawlah bint Thalabah رضي الله عنها came to Prophet ﷺ complaining that her husband has pronounced "Dhihaar" on her (i.e. suspending her, neither divorcing her nor treating her as a wife). The moment she said: O Allaah, I complain to you, soon after, Jibreel عليه السلام brought down the Aayaat of Surah al-Mujaadalah (58).
📚 [Saheeh al-Bukhaaree and Musnad Ahmad]
2️⃣ When the seventy reciters from the Companions were killed near the Maoonah well, the Prophet ﷺ prayed against the perpetrators for ONE WHOLE MONTH.
📚 [Saheehain]
3️⃣ When Umm al-Mu'mineen, Aaishah رضي الله عنها was falsely accused, she waited for a WHOLE MONTH before Allaah تعالى revealed Aayaat freeing her from the blame.
📚 [Saheehain]
4️⃣ The three - Kab Ibn Maalik, Hilaal Ibn Umayyah, and Muraarah bin al-Rabee - who stayed behind and did not join the Prophet ﷺ in the Tabook expedition, they were boycotted for FIFTY days by all the Muslims till Allaah accepted their repentance.
📚 [Surah al-Tawbah (9): 118, and Saheehain, Tafseer Ibn Katheer]
5️⃣ When the husband of Umm Salamah رضي الله عنها passed away and the Prophet ﷺ had instructed her to say: إِنَّا لِلَّهِ وَإِنَّا إِلَيْهِ رَاجِعُونَ اللَّهُمَّ أْجُرْنِي فِي مُصِيبَتِي وَأَخْلِفْ لِي خَيْرًا مِنْهَا, she had to wait for FOUR MONTHS AND TEN DAYS, before the Prophet ﷺ could send her the proposal for marriage. Umm Salamah used to say who could be better than Abu Salamah to propose me for marriage, and Allaah provided the Prophet ﷺ as her husband, something she did not anticipate.
📚 [Saheeh Muslim]
6️⃣ Yaqoob عليه السلام had to wait for YEARS before Allaah تعالى returned Yusuf عليه السلام to him.
📚 [Surah Yusuf]
7️⃣ When Sad Ibn Abee Waqqaas and Saeed Ibn Zaid رضي الله عنهما prayed against their oppressors, their prayers were answered after a LONG TIME, so much so that their oppressors grew old, became blind, and died a miserable death.
📚 [Saheehain]
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At the end, remember the Du`aa is answered, but Allaah responds to it in a way and at the time when it is most beneficial for us.