Sayyiduna Anas bin Malik reports that Rasoolullahﷺ once passed by a Bedouin who was making the following du’a in his Salah:

“يا مَنْ لا تَرَاهُ الْعيونْ، ولاَ تُخَالِطُهُ الظُّنوْنْ، ولا يَصِفُهُ الْوَاصِفُون، ولا تُغَيِّرُهُ الحَوادِثْ، ولا يَخْشَى الدَّوائِرْ، ويَعْلَمُ مَثَاقِيْلَ الجِبالْ، وَمَكَايِيْلَ البِحارْ، وعددَ قَطَرِ الأمطار، وعددَ وَرَقِ الأشجار، وعددَ ما أظْلَمَ عليهِ اللّيْلُ، وَأشْرَقَ عليه النّهار، ولا تُوَارِيْ منه سماءٌ سماءً، ولا أرضٌ أرضاً، ولا بحرٌ ما في قعرِه، ولا جبَلٌ ما في وَعْرِه، اِجْعَلْ خَيرَ عُمُرِي آخرَه، وخيرَ عمَلي خواتمَه، وخيرَ أيّامِي يومَ ألْقاكَ فيه”
(رواه الطبراني في المعجم الأوسط، حديث رقم 9488، مجمع الزوائد: حديث رقم: 17267، وقال الهيثمي صاحب مجمع الزوائد: رجاله رجال الصحيح غير عبد الله بن محمد أبي عبد الرحمن الأذرمي وهو ثقة)

“O The One Whom eyes cannot see, Who cannot be imagined, Who is beyond description, Who is unaffected by happenings, Who cannot be overwhelmed by the twists and turns of time, Who knows the weight of the mountains, the volume of the oceans, the number of falling raindrops, the number of leaves on the trees and everything upon which the night darkens and upon which the day brightens. No sky can hide another from Him, no surface of the earth can hide another from Him, no ocean can hide anything within its depths from Him and no mountain can conceal from Him anything within its rocks. Make the last part of my life the best, make the best of my deeds the last and make my best day be the one in which I meet You.”
Rasoolullahﷺ appointed someone to bring the Bedouin to him as soon as he completed his Salah. Rasoolullahﷺ had been given some gold from a certain mine and when the Bedouin came before him after he had completed his Salah, Rasoolullahﷺ gave him the gold and asked, “Which tribe do you belong to?”
The man said that he was from the Banu Aamir bin Sa’sa’ah. Rasoolullahﷺ then asked, “Do you know why I gave you this gold as a gift?” “Because of the family ties between us, Ya Rasoolullahﷺ, he said. Rasoolullahﷺ said, “While family ties have a right, I actually gave you the gold because of the beautiful manner in which you praised Allahﷻ.” (Tabraani and confirmed by Haythami Vol. 10 pg. 158).