(An-Nahl) 16 : 7
وَتَحْمِلُ أَثْقَالَكُمْ إِلَىٰ بَلَدٍ لَمْ تَكُونُوا بَالِغِيهِ إِلَّا بِشِقِّ الْأَنْفُسِ ۚ إِنَّ رَبَّكُمْ لَرَءُوفٌ رَحِيمٌ
And they carry your loads to a land you could not have reached except with difficulty to yourselves; Indeed, your Lord is the Kind, the Merciful.
In the olden days, domestic animals like camel, donkey, buffalo, and cow were used for carrying loads. Even today, they are rarely used where road transportation is not possible. Believer who testifies Adhikr will only be grateful to the Kind and the Merciful Lord as explained in verse 2: 152, whereas the Arabic Quran reading Fujjar who read these verses are ungrateful towards Lord by forgetting Adhikr.