Hadith on Dua: Do not pray against yourself or your family.....

Jabir reported: The Messenger of Allah, peace and blessings be upon him, said, “Do not supplicate against yourselves, do not supplicate against your children, and do not supplicate against your property, lest it coincides with an hour in which Allah is asked for something and He answers you.”

Source: Ṣaḥīḥ Muslim 3009

Grade: Sahih (authentic) according to Muslim

عَنْ جَابِرِ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ لا تَدْعُوا عَلَى أَنْفُسِكُمْ وَلَا تَدعُوا عَلَى أوْلادِكُمْ وَلَا تَدْعُوا عَلَى أموَالِكُمْ لا تُوافِقُوا مِنَ اللهِ سَاعَةً يُسألُ فِيهَا عَطَاءً فَيَسْتَجِيبَ لَكُمْ

3009 صحيح مسلم كتاب الزهد والرقائق باب حديث جابر الطويل وقصة أبي اليسر