رَأَيْتُ الَّتِي كَتَبَتِ الرِّسَالَةَ.
Translation: I saw the one who wrote the letter.
Allatī is a definite relative noun; the following clause is its ṣilah.
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Relative Noun and Clause
Conclusion: Definite and Indefinite Nouns
رَأَيْتُ الَّتِي كَتَبَتِ الرِّسَالَةَ.
Translation: I saw the one who wrote the letter.
Allatī is a definite relative noun; the following clause is its ṣilah.