Taw'heed means Believing in One and only one ALLAH and Prophet Muhammed (Peace Be Upon Him) is his Last Messenger . A person is not a Muslim till this truth is aceepted by heart . It means Believing in the Oneness of Lordship , Oneness of Worship and Oneness in the Names and attributes of ALLAH.
Taw'heed can be viewed as
It means to believe in the Oneness of ALLAH regarding his actions . ALLAH is the only real power . ALLAH is the sole Creator , Sustainer , Cherisher etc. As ALLAH says in Qur'an
"ALLAH is the Creator of all things." (39/62)
"Surely, your Lord is ALLAH Who created the heavens and the earth in six days and then 'ISTAWA' (rose above) the Throne (really in the manner that suits his Almighty) , disposing the affair of all things." (10/3)
Taw'heed Al-Uloohiya :
It is to believe that none has the right to be truly worshipped except ALLAH. This means that we should direct all forms of worship to ALLAH alone . Since ALLAH alone deserves to be worshipped . All of our praying , fasting , pilgrimage , supplication , asking for help , swearing , slaughtering , sacrificing , charity etc. , all must be directed to ALLAH . This kind of worship was rejected by polytheists: ALLAH says in the Qur'an ,
"And they (Arab Pagans) wonder that a Warner (Prophet Muhammed Peace Be Upon Him) has come to them from among themselves ! And the disbelievers say : "This (Prophet Muhammed, Peace Be Upon Him) is a sorcerer , a lair. Has he made the gods (all) into One God (ALLAH). Verily this is a curious thing!" (38:4-5)
"That is because ALLAH - He is the Truth (the only true God of all that exists , Who has no partners or rivals with Him), and what they (the polytheists) invoke besides Him , it is 'Batil' (falsehood). And Verily ALLAH - He is the Most High , the Most Great." (22:62)
Taw'heed Al-Asmaa Was-Sif'faat :
This is to believe that:
"There is nothing like unto Him , and He is the All-Hearer , the All-Seer." (42:11)
"Say (O Prophet Muhammed , Peace Be Upon Him ) : He is ALLAH , (the) One . Allah As-Samad (The Self-Sufficient Master , Whom all creatures need , He neither eats nor drinks) . He begets not , nor was he begotten , and there is none co-equal or comparable unto Him." (112:1-4)
"And (all) the Most Beautiful Names belong to ALLAH , so call on Him by them." (7:180)
"And for ALLAH is the highest description , And he is the Almighty , the All-wise." (16:60)
This is the faith taught by all Prophets of ALLAH from Noo'h(Noah) , Ibrahim (Abraham) , Moosa (Moses) , Dawood (David) , I'sa(Christ) till Prophet Muhammed(Peace Be Upon Him) . This is the faith of the Believers the Ahle-Sunnah-Wal-Jama'at (those who abide by Quran and Sunnah) .
This is what is included in Taw'heed and the later part of the Shahada , bear witness , is to testify that Prophet Muhammed(Peace Be Upon Him) is the Last Messenger of ALLAH. This means none has the right to be followed but Qur'an and Prophet Muhammed(Peace Be Upon Him) . As ALLAH says:
"And whatsoever the Messenger (Prophet Muhammed , Peace Be Upon Him) gives you , take it , and whatsoever he forbids you , abstain (from it)." (59:7)
Those who accept this are Believers and the others are Non-Believers .
It is important for one that after he accepts this truth and embraces Islam he should have the following beliefs :
to be continued...