Reading from the books of tafseer while in the state of impurity

Question:
I read books of Tafseer of the Qur'an when I am not in a state of purity... such as during my monthly period, is there any objection to this, and am I committing any sin by doing so? Please deliver a verdict, and may Allah reward you.

The Four, Five, Six and Nine Books of Hadeeth

The Four Books of Hadeeth [Al Kutub al Arba’ah]: [Also known as ‘The Sunan’]:

1. Sunan Abu Dawood
2. Sunan at Tirmidhee
3. Sunan an Nasaa-ee
4. Sunan ibn Majah.

[Al Haafidh ibn Katheer in Al Baa'ith al Hatheeth: 1/6]

The Five Books of Hadeeth [Al Kutub al Khamsah]:

They are the foundations of Islaam, meaning :

1. Saheeh al Bukhaaree
2. Saheeh Muslim
3. Sunan Abu Dawood
4. Sunan at Tirmidhee
5. Sunan an Nasaa-ee

[Al Imaam an Nawawee in Sharh Saheeh Muslim: vol 1: P.6.]

The Virtue of Reading Books

Collected by Ibn ‘Abd al-Barr in ‘Jami’ Bayan al-’Ilm wa Fadlih,’ the chapter titled: ‘The Virtue of Looking Through Books and the Praiseworthiness of Tending to Them’:

2414: Abu ‘Abdullah Muhammad bin Isma’il al-Bukhari was asked: “What is it that strengthens one’s memory?” He replied: “Constantly looking through books.”

2415: Ahmad bin Abi ‘Imran said:

“I was with Abu Ayyub Ahmad bin Muhammad bin Shuja’, and he was staying in his house. So, he sent one of his sons to Abu ‘Abdillah bin al-A’rabi to invite him over.

The boy returned, saying: “I asked him this, and he said to me: “I am with a group, and when I am done being taught by them, I will be over,” and I did not see a single person at his house. Rather, he had in front of him books that he was looking through. He would look in this book for some time, and then look in another book for some time.”

Six Etiquettes of Learning

Ibn al-Qayyim - rahimahullaah - said:

"There are six stages to knowledge:-
Firstly: Asking questions in a good manner.
Secondly: Remaining quiet and listening attentively.
Thirdly: Understanding well.
Fourthly: Memorising.
Fifthly: Teaching.
Sixthly - and it is its fruit: Acting upon the knowledge and keeping to its limits."

Taken from Miftaah Daarus-Sa'aadah (p.283)

Words To Hang On The Wall And Imbue In The Heart

These quotes futher illustrate how the illustrious pious predecessors of this ummah (may Allah be pleased with and bestow His Mercy upon them and guide us to their example) understood the guidance of the Prophet sallallaahu 'alaihi wa sallam (i.e. Islam).