Allah's statement,

نَحْنُ جَعَلْنَاهَا تَذْكِرَةً ...

We have made it a Reminder,

According to Mujahid and Qatadah, "of the Hellfire".

Qatadah said, "We were told that the Messenger of Allah said,

يَا قَوْمِ نَارُكُمْ هذِهِ الَّتِي تُوقِدُونَ، جُزْءٌ مِنْ سَبْعِينَ جُزْءًا مِنْ نَارِ جَهَنَّم

O people, this fire of yours that you kindle, is but one part out of seventy parts of the fire of Hell.

They said, "O Allah's Messenger! This fire alone is sufficiently hot.''

The Messenger said,

إِنَّهَا قَدْ ضُرِبَتْ (بِالْمَاءِ) ضَرْبَتَيْنِ أَوْ مَرَّتَيْنِ حَتْى يَسْتَنْفِعَ بِهَا بَنُو آدَمَ وَيَدْنُوا مِنْهَا

It was submerged in the water twice so that the Children of `Adam would be able to benefit from it and draw closer to it.

This narration from Qatadah which is Mursal, was recorded by Imam Ahmad in his Musnad from Abu Hurayrah, from the Prophet;

إِنَّ نَارَكُمْ هذِهِ جُزْءٌ مِنْ سَبْعِينَ جُزْءًا مِنْ نَارِ جَهَنَّمَ، وَضُرِبَتْ بِالْبَحْرِ مَرَّتَيْنِ، وَلَوْلَا ذلِكَ مَا جَعَلَ اللهُ فِيهَا مَنْفَعَةً لِأَحَد

Verily, this fire of yours is one part out of seventy parts of the fire of Hell. It was struck twice against the sea, otherwise, Allah would not have made benefit in it for anyone.

Imam Malik also recorded that Abu Hurayrah said that Allah's Messenger said,

نَارُ بَنِي آدَمَ الَّتِي يُوقِدُونَ، جُزْءٌ مِنْ سَبْعِينَ جُزْءًا مِنْ نَارِ جَهَنَّم

The fire that the Children of Adam kindle is one part out of seventy parts of the fire of Hell.

They said, "O Allah's Messenger! This fire alone is sufficiently hot.''

He said,

إِنَّهَا قَدْ فُضِّلَتْ عَلَيْهَا بِتِسْعَةٍ وَسِتِّينَ جُزْءًا

(The fire of Hell) was made sixty-nine times hotter.

Al-Bukhari collected this Hadith from Malik and Muslim from Abu Az-Zinad.

Allah's statement,

... وَمَتَاعًا لِّلْمُقْوِينَ ﴿٧٣﴾

and an article of use for the Muqwin.

Ibn Abbas, Mujahid, Qatadah, Ad-Dahhak and An-Nadr bin Arabi said,

"The meaning of Al-Muqwin is travelers.''

This is also what Ibn Jarir chose, and he said,

"From it comes the saying Aqwat Ad-Dar (the house has become empty), when its people traveled.''

Abdur-Rahman bin Zayd bin Aslam said that here Al-Muqwi means the hungry.

Layth bin Abi Sulaym reported that Mujahid said about the Ayah, وَمَتَاعًا لِّلْمُقْوِينَ (and an article of use for the Muqwin).

"For those who are present at their homes and travelers, for every kind of food that requires cooking by fire.''

Ibn Abi Najih also reported that Mujahid said,

"For the Muqwin, means, all people who enjoy (eating food cooked by fire).''

Similar was mentioned from Ikrimah, and this explanation is more general than the previous, since those who are in their own locale and traveling, whether rich or poor, all need fire for cooking, heating and lighting purposes. It is out of Allah's kindness that He has made the quality of kindling fire in some elements, such as stones, that people can use and take in the baggage for their journeys. When a traveler needs fire at his campsite for cooking and heating, he takes out these substances and uses them to kindle fire. He feels comfort next to the fire and he can use it for various needs that he has. Allah mentions this favor specifically in the case of travelers, even though everyone benefits from the fire.