بِسْمِ اللَّهِ وَالصَّلَاةُ وَالسَّلَامُ عَلَىٰ رَسُولِ اللَّهِ، اللَّهُمَّ إِنِّي أَسْأَلُكَ مِنْ فَضْلِكَ
Bismillah, wassalatu wassalamu 'ala Rasulillah. Allahumma inni as'aluka min fadlik
In the Name of Allah, and peace and blessings be upon the Messenger of Allah. O Allah, I ask You from Your bounty.
The full Sunnah when leaving the masjid: step out with the left foot, say Bismillah, send salawat upon the Prophet ﷺ, then ask Allah for His fadl (bounty). The distinction between the entering and leaving du'as is profound — inside the masjid you sought rahmah (spiritual mercy); now heading back into the world, you ask for fadl (worldly provision and bounty). It reflects the Muslim's dual responsibility: worship inside the masjid, honest earning outside it. Both are from Allah, but you ask for each in its proper place.
Related Du'as
اللَّهُمَّ لَكَ الْحَمْدُ أَنْتَ كَسَوْتَنِيهِ أَسْأَلُكَ مِنْ خَيْرِهِ وَخَيْرِ مَا صُنِعَ لَهُ وَأَعُوذُ بِكَ مِنْ شَرِّهِ وَشَرِّ مَا صُنِعَ لَهُ
O Allah, praise is for You. You have clothed me with it. I ask You for its goodness and the goodness for which it was made, and I seek refuge in You from its evil and the evil for which it was made.
Sahihبِسْمِ اللَّهِ وَلَجْنَا وَبِسْمِ اللَّهِ خَرَجْنَا وَعَلَى اللَّهِ رَبِّنَا تَوَكَّلْنَا
In the Name of Allah we enter, in the Name of Allah we leave, and upon Allah our Lord we place our trust.
Sahihلَا إِلَٰهَ إِلَّا اللَّهُ وَحْدَهُ لَا شَرِيكَ لَهُ، لَهُ الْمُلْكُ وَلَهُ الْحَمْدُ يُحْيِي وَيُمِيتُ وَهُوَ حَيٌّ لَا يَمُوتُ بِيَدِهِ الْخَيْرُ وَهُوَ عَلَى كُلِّ شَيْءٍ قَدِيرٌ
There is no deity except Allah, alone without partner. His is the dominion and His is the praise. He gives life and causes death, and He is the Ever-Living who does not die. In His hand is all good, and He is over all things capable.
Hasanالسَّلَامُ عَلَيْكُمْ أَهْلَ الدِّيَارِ مِنَ الْمُؤْمِنِينَ وَالْمُسْلِمِينَ وَإِنَّا إِنْ شَاءَ اللَّهُ بِكُمْ لَاحِقُونَ نَسْأَلُ اللَّهَ لَنَا وَلَكُمُ الْعَافِيَةَ
Peace be upon you, O inhabitants of these dwellings, believers and Muslims. Indeed, we will, Allah willing, join you. We ask Allah for well-being for us and for you.
Sahih